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发明名称
Hardness measuring apparatus, operated by a single compressive motion
摘要
申请公布号
US3200640(A)
申请公布日期
1965.08.17
申请号
US19610151085
申请日期
1961.11.08
申请人
ALFREDO ERNST
发明人
ERNST ALFREDO
分类号
G01N3/44
主分类号
G01N3/44
代理机构
代理人
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地址
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